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DIY simple homopolar motor made with a drywall screw, a battery cell, a wire, and a disk magnet. The magnet is on the screw head. The screw and magnet make contact with the bottom of the battery cell and are held together by the magnet's attraction. The screw and magnet spin, with the screw tip acting as a bearing.
The God Helmet was not specifically designed to elicit visions of God, [1] but to test several of Persinger's hypotheses about brain function. The first of these is the Vectorial Hemisphericity Hypothesis, [20] which proposes that the human sense of self has two components, one on each side of the brain, that ordinarily work together but in which the left hemisphere is usually dominant.
If you’re looking for fun and educational ways to occupy your mini scientists, try these 5 DIY experiments. The post 5 DIY experiments mini scientists can do at home appeared first on In The Know.
Magnetic confinement in the stellarator is based on a strong magnetic field produced by solenoidal coils encircling a toroidal tube. The configuration is characterized by a 'rotational transform', such that a single line of magnetic force, followed around the system, intersects a cross-sectional plane in points which successively rotate about ...
This is known as anti-Helmholtz coil, and is used for creating magnetic traps for atomic physics experiments. In some applications, a Helmholtz coil is used to cancel out the Earth's magnetic field , producing a region with a magnetic field intensity much closer to zero.
However, magnetic torque magnetometry doesn't measure magnetism directly as all the previously mentioned methods do. Magnetic torque magnetometry instead measures the torque τ acting on a sample's magnetic moment μ as a result of a uniform magnetic field B, τ = μ × B. A torque is thus a measure of the sample's magnetic or shape anisotropy.
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